Spring construction.



L. A. YOUNG.

SPRING CONSTRUGTION.

APPLICATION FILED 0013.17, 1910.

Patented Jani17, 1911 [Iri- .I III making and assembling.

anon-am) n. YOUNG, or Dnrnorr, MICHIGAN.

' spams oons'rnoo'rion.

T 0 all whom it may coneem:

Be it known that I, LEONARD A. YoUNG, a citizen of the United States ofAmerica, residing at Detroit,-in the county of Wayne" and State ofMichigan, have invented cer -Q tain new and useful Improvements in-Spring Constructions, ;of which the following is a specification,reference being bad, therein to the accompanying drawin i In spring seatconstructions-it is gsirable to reduce the number :of, parts and ,tosimplify the means of connecting them in order not only. to cut down thecost of material but likewise that of the labor of This inventionrelatestospringconstruc tions in which spring members are secured toconfining and supporting frames without the use of clips or otherfastening means and without the necessity of previously slotting,perforating or otherwise tooling the mem-' bers of the frames; Theinvention consists in the-matters hereinafter set forth, and moreparticularl pointed out in the appended claims. 1

In the drawings, Figure Lisa view of a portion of .an upper rim framewith adjacent parts of springs, einbodying'the invention: Fig. 2 is aview in detail of a base frame showing methodof attaching springsthereto; Fig. 3 isa "iew in. section through one of the frame members;Figs. 4 and 5 are 6 is a view in views in section showing differentmanners of attaching springs to the strips; and Fig.

detail of afurther modification.

In spring constructions in theclass above referred to, the body springsare usually upright spiral coils as indicated at 1 whose topconvolutions 2 are secured in place by attachment to a rim frame 3. Inthe 0011-; struction herein shown the latter is a metal strip or barhaving a flange 4 thereon 1on gitudinally disposed in a plane transverseto the plane of the body of the strip. As indicated in Fig. 1 where thestrip is used for a rim frame thebody of the strip rests on the topconvolutions 20f the springs, which contact also with the longitudinalflange. The marginal portion of the latter adjacent the point of contactwith each spring 1s bent over the spring toward the base of the strip.This forms a retaining part 7 which secures the coil firmly in place.The portion 7 usually forced into place with a swaging v.Speeificationof Lettcrs ratent. Patented Jan, 17,1911, Applicationfiled October- 121910." 'Seria1 '.No.'587,426.

- tool which usually is arranged to shear the part 7 from the bodyof the:flange as indimar'gin to theflange. The base frame as indicated in Fig.2 may also be formed in' a the same manner asthe I'1Il1 frame.

ously,.the portlon 7 may be made to bear Obvitangential-ly only againstthe spring as in Fig. 3-'or it may be bent to closely embrace the springas in Fig, 4. As the strips are usual marginal or central and if centralas in Figs. 4 and 5, it is usually double walled in which case one ofthe walls is pressed out at the-point of contact with the spring to formthe ton e. I In Fig; 5, the body of the strip is up- .rig-ht'sand one ofits margins is inbent around the spring. When used as a base frameconstruction, the bending down or. interrupting of the marginal flangenecessarily weakens the latter and this is. compensated for by thespring itself whose coil held in contact with the member acts as areinforcement to the weakened zone. method of construction the use ofclips or not wish to'limit myself to any particular form or arrangementof parts.

I claim as my invention p 1. In a spring construction, a frame memberhaving a longitudinal flange in a plane transverse to the plane of thebody of the member, and springs disposed thereon, a convolution-of eachspring contacting with the body and flange of the member and the marginof the flange being interrupted adjacent the contacting portion of thespring with an off-set that is bent over the contiguous spring.

'2. In spring constructions, sheet metal strips provided withlongitudinal flanges transverse to the body of the strip, and springseach having a convolution resting cated in Figs. '2, 3, 4 and 5.Otherwise it maybend over a portion ofvthe flange, and

in both instances it leaves an interrupted,

y'of sheet metal the flange may be By this other spring fasteningsindependently of the marginal portion of the latter adjacenteach springbeing'otf-set as an interruption to bent around the springs.

the margin of the flange and being bent around the spring. v

,3. In a spring construction, upright body springs and a rim frameconsisting of flanged strips resting on the top convolutions of thesprings 'with their flanges in contact therewith, the marginal portionsof the flanges adjacent the springs being in- 4. In a springconstruction, upright body springs and a rim frame consisting of flangedstrips resting on the top convolutions of the springs withtheir flangesin contact therewith, the marginal portipns of the flanges adjacent thesprings being inbent around the springs, and the portion of the.

convolution of each spring that bears against the body of the stripbeing adapted to reinforce the strip at the point of interflange restingon the top con olutions of the springs which contact also with the otherflanges, the marginal portions of the latter fla e adjacent eachcontacting spring being Imnt around the spring and forminginterruptionsto the margins'of the flange itself.

In testimony whereof I aflix my signature in presence of two witnesses.

LEONARD Witnesses:

C. R. STICKNEY,

Or'ro BARTHEL.

A. YOUNG;

